Upright vacuum



FIG. 1 is a front perspective view of an upright vacuum cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 2A is an enlarged detail of the pattern in FIG. 2;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a top plan view thereof.

The details shown in broken lines form no part of the claimed design. 

CLAIM We claim the ornamental design for an upright vacuum, as shown and described. 